Connecting node, staggered and stacked module and staggered and stacked modular building

Abstract

The invention relates to a connecting joint, a staggered and stacked module and a staggered and stacked modular building. The connecting joint comprises an upper corner fitting, a lower corner fitting and a connecting piece, wherein the inner part of the upper corner fitting is provided with a cavity structure; the lower corner piece is internally provided with a cavity structure, is positioned at the bottom of the upper corner piece and is at least communicated with the cavity structure; the inner inserting piece is located in the upper corner piece and the lower corner piece which are communicated with each other and is vertically oriented; the cavity structure is used for containing slurry after the insert is inserted. The connecting node has the beneficial effects that the connecting node can be connected with the modules which are arranged in a staggered and stacked manner, and the insert is independently arranged and can horizontally move to adapt to insertion of the upper corner piece and the lower corner piece which have horizontal deviation, so that the requirements on vertical and horizontal connection precision between the modules which are arranged in a staggered and stacked manner are effectively reduced; and the production size precision requirement of the staggered and stacked modules is reduced, so that the production efficiency is improved, and the later adjustment cost caused by the fact that the modules cannot be accurately located and installed on site can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of modular buildings, and in particular to a connecting node, a staggered stacking module and a staggered stacking modular building. Background Art

[0002] Steel structural modules offer fast construction, high assembly rates, and excellent seismic performance, aligning with the trend toward building industrialization and attracting significant attention within the construction industry. In recent years, scholars and researchers have proposed staggered stacking of steel modules to address the high steel consumption associated with conventional steel structural modules, which often feature multiple beams and columns. Theoretical calculations indicate that this structural approach can reduce steel consumption by approximately 20%, resulting in significant engineering benefits.

[0003] The existing staggered stacked steel structure module system is connected by directly plugging the column top of the lower module into the column foot of the upper module. This plug-in method requires high vertical and horizontal connection accuracy between the upper and lower modules. Once the dimensional accuracy of a single module deviates, or the large number of modules to be installed leads to a large cumulative error, it is very likely that the module cannot be accurately positioned and installed on site. Cutting and welding operations must be performed on site to adjust the module corner structure, or the module must be returned to the factory for dimensional adjustment, resulting in significant financial losses and construction delays. Summary of the Invention

[0004] (1) Technical issues to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a connection node, a staggered stacking module and a staggered stacking modular building, which solves the technical problem that the direct connection between the column top of the lower module and the column foot of the upper module requires high vertical connection accuracy and horizontal connection accuracy of the upper and lower modules.

[0006] (2) Technical solution

[0007] In order to achieve the above objectives, the main technical solutions adopted by the present invention include:

[0008] In a first aspect, an embodiment of the present invention provides a connection node for a staggered stacked modular building, comprising:

[0009] Upper corner piece with a cavity structure inside;

[0010] A lower corner piece having a cavity structure therein, the lower corner piece being located at the bottom of the upper corner piece and being in communication at least at the cavity structure; and

[0011] an inner plug-in unit located inside the communicating upper corner fitting and lower corner fitting and oriented vertically;

[0012] The cavity structure is used to accommodate slurry (J) after the inner plug is inserted.

[0013] According to the present invention, the upper corner fitting comprises at least a first sleeve, the first sleeve has the cavity structure inside, and the bottom of the first sleeve has an opening to communicate with the lower corner fitting;

[0014] The upper corner piece also includes a second sleeve or a horizontal frame, which is located on the upper part of one side of the first sleeve; the second sleeve has the cavity structure, and the bottom of the second sleeve has an opening to communicate with the lower corner piece.

[0015] According to the present invention, the lower corner fitting comprises:

[0016] a third sleeve, wherein the third sleeve has the cavity structure inside and the top of the third sleeve has an opening for communicating with the upper corner piece;

[0017] The fourth sleeve is located on the upper part of one side of the third sleeve, the fourth sleeve has the cavity structure inside, and the top of the first sleeve has an opening to communicate with the upper corner piece.

[0018] According to the present invention, the inserter comprises:

[0019] a first insert comprising a first horizontal plate, an upper vertical profile fixed to the top of the horizontal plate, and a lower vertical profile fixed to the bottom of the horizontal plate;

[0020] a second inner plug, the second inner plug comprising a second horizontal plate and a vertical profile fixed to a bottom of the second horizontal plate;

[0021] The third sleeve is located at the bottom of the first sleeve, the upper vertical profile of the first insert is located in the first sleeve, the lower vertical profile is located in the third sleeve, and the first horizontal plate is sandwiched between the first sleeve and the third sleeve;

[0022] The fourth sleeve is located at the bottom of the second sleeve, the upper vertical profile of the first insert is located in the second sleeve, the lower vertical profile is located in the second sleeve, and the first horizontal plate is sandwiched between the second sleeve and the fourth sleeve; or,

[0023] The fourth sleeve is located at the bottom of the horizontal frame, the vertical profile of the second inner plug-in is located in the fourth sleeve and the horizontal frame, and the second horizontal plate is placed on the top of the horizontal frame.

[0024] According to the present invention, the inner walls of the first sleeve and the second sleeve are provided with multiple rows and columns of first barb bolts that are bent upward, the inner walls of the third sleeve and the fourth sleeve are provided with multiple rows and columns of first barb bolts that are bent downward, the outer periphery of the upper vertical profile is provided with multiple rows and columns of second barb bolts that are bent downward, and the outer periphery of the lower vertical profile and the vertical profile is provided with multiple rows and columns of second barb bolts that are bent upward.

[0025] According to the present invention, a first circulation hole is provided on the first horizontal plate; a grouting material circulation hole is provided on the top of the first sleeve, the second sleeve and the fourth sleeve;

[0026] The second horizontal plate is provided with a second circulation hole;

[0027] When the first inner plug is located inside the first sleeve and the third sleeve that are connected, the cavity structure of the first sleeve, the first flow hole and the cavity of the third sleeve are connected in sequence to form a grouting channel; or,

[0028] When the first inner plug is located inside the second sleeve and the fourth sleeve that are connected, the cavity structure of the second sleeve, the first flow hole and the cavity structure of the fourth sleeve are connected in sequence to form a grouting channel;

[0029] When the second inner plug-in unit is located inside the communicating horizontal frame and the third sleeve, the second flow hole and the cavity structure of the third sleeve are communicated to form a grouting channel.

[0030] According to the present invention, a reinforcing plate is provided in the middle of the length direction of the first sleeve, the second sleeve, the third sleeve and the fourth sleeve; the upper vertical profile, the lower vertical profile and the vertical profile are provided with a notch for inserting the reinforcing plate;

[0031] The upper vertical profile and the lower vertical profile of the first insert are vertically overlapped or horizontally offset.

[0032] According to the present invention, the cross-sections of the upper vertical profile, the lower vertical profile, and the vertical profile are all C-shaped;

[0033] When the two first inserts are respectively located inside the first sleeve and the third sleeve, and inside the second sleeve and the fourth sleeve, the openings of the two first inserts are opposite to each other;

[0034] When the first interposer and the second interposer are respectively located inside the communicating first sleeve and the third sleeve, and inside the horizontal frame and the fourth sleeve, the openings of the first interposer and the second interposer face each other.

[0035] In a second aspect, the present invention further provides a staggered stacking module, comprising the connection node of the staggered stacking modular building, and the module, wherein the module comprises at least a steel structure module;

[0036] The steel structure module is a rectangular parallelepiped frame structure, the four bottom corners of the steel structure module are provided with the upper corner pieces, and the four top corners of the steel structure module are provided with the lower corner pieces;

[0037] When a plurality of the steel structure modules are arranged in a staggered stack, the bottom corners of the upper steel structure modules can be connected to the top corners of the lower staggered steel structure modules through the connection nodes to form multi-layer and multi-span staggered stacked modules.

[0038] In a third aspect, the present invention further provides a staggered stacked modular building, comprising the staggered stacked modules, wherein the modules further comprise a bottom frame, a wall frame, a top frame and support beams;

[0039] The bottom frame and the top frame are oriented horizontally, and the wall frame is oriented vertically; the bottom frame is provided with the bottom corner fittings; the top frame is provided with the top corner fittings; the bottom corner of the wall frame is provided with the top corner fittings; the support beam is oriented horizontally, and the bottom corner fittings are provided at two corners;

[0040] The bottom notches of the staggered stacked modules can be connected to the bottom frame through the connection nodes, the side notches can be connected to the wall frames through the connection nodes, the top notches can be connected to the top frame through the connection nodes, and the outer bottom corners of the steel structure modules located at the edges of the bottom layer can be connected to the two corners of the support beams through the connection nodes, so as to form a multi-story, multi-span modular building in the shape of a rectangular parallelepiped.

[0041] (3) Beneficial effects

[0042] The staggered module connection node of the present invention is capable of connecting modules in a staggered arrangement. The independently arranged internal inserts can move horizontally to accommodate the insertion of upper and lower corner fittings with horizontal offsets, thereby enabling the connection of modules staggered vertically with horizontal deviations. This effectively reduces the vertical and horizontal connection accuracy requirements between staggered modules, and reduces the dimensional accuracy requirements for the production of staggered modules, thereby improving production efficiency and reducing the cost of subsequent adjustments caused by inaccurate module placement and installation on site. Furthermore, this connection node achieves a high-strength connection between the internal inserts, upper and lower corner fittings through grouting, expediting construction and minimizing on-site workload. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 An assembly diagram of the staggered stacked modular building of the present invention;

[0044] Figure 2 It is an assembly drawing of staggered stacked modules;

[0045] Figure 3 for Figure 1 Schematic diagram of the decomposition;

[0046] Figure 4 for Figure 3 A magnified view of point A;

[0047] Figure 5 for Figure 4 DD cross-sectional view (the first inner plug-in unit is a standard part);

[0048] Figure 6 for Figure 4 DD section view and partial enlarged view (the first inner plug-in unit is a non-standard part);

[0049] Figure 7 for Figure 5 Assembly cross-sectional view;

[0050] Figure 8 for Figure 1 Cross-sectional view at GG in FIG;

[0051] Figure 9 for Figure 3 Enlarged view of point B;

[0052] Figure 10 for Figure 9 FF cross-sectional view;

[0053] Figure 11 for Figure 3 Enlarged view of point C;

[0054] Figure 12 for Figure 11 Cross-sectional view at EE.

[0055] [Description of Reference Numerals]

[0056] 100: Staggered stacked modular building; 200: Staggered stacked modules; 201: Bottom gap; 202: Side gap; 203: Top gap;

[0057] 1: Connection node; 11: Upper corner fitting; 111: First sleeve; 112: Second sleeve; 113: Horizontal frame; 12: Lower corner fitting; 121: Third sleeve; 122: Fourth sleeve; 13: Insert; 131: First insert; 1311: First horizontal plate; 13111: First flow hole; 1312: Upper vertical profile; 1313: Lower vertical profile; 132: Second insert; 1321: Second horizontal plate; 13211: Second flow hole; 1322: Vertical profile; 14: Reinforcement plate; H1: First barb stud; H2: Second barb stud; L: Grout flow hole; Q: Notch;

[0058] 21: Steel structure module; 22: Bottom frame; 23: Wall frame; 24: Top frame; 25: Support beam; 26: Support steel column; K1: Grouting hole; K2: Overflow hole;

[0059] J: slurry. DETAILED DESCRIPTION

[0060] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below with reference to the accompanying drawings and through specific embodiments. Figure 2 The orientation is referenced.

[0061] Example 1

[0062] See also Figure 1-12 An embodiment of the present invention provides a connection node for a staggered stacked modular building, which is used to connect staggered stacked modules. The connection node 1 includes an upper corner piece 11, a lower corner piece 12 and an inner plug-in 13.

[0063] The upper corner fitting 11 has a cavity structure inside. The lower corner fitting 12 also has a cavity structure inside. Lower corner fitting 12 is located at the bottom of upper corner fitting 11 and is connected at least at the cavity structure. An inner insert 13 is located inside the connected upper and lower corner fittings 11, 12, and is oriented vertically. The cavity structure is used to accommodate slurry J used to form concrete after inner insert 13 is inserted, thereby connecting upper and lower corner fittings 11, 12 to form a single structure.

[0064] As a result, this connection node 1 can connect staggered modules, and the independent insert 13 can move horizontally to accommodate the insertion of upper and lower corner fittings 11 and 12 with horizontal offsets. This allows for the connection of modules that are staggered horizontally, effectively reducing the vertical and horizontal connection accuracy requirements between staggered modules and the dimensional accuracy requirements for the production of staggered modules, thereby improving production efficiency and reducing the cost of subsequent adjustments caused by inaccurate module placement and installation on site. Furthermore, this connection node 1 achieves a high-strength connection between the insert 13, upper and lower corner fittings 11, and 12 through grouting, resulting in fast construction and minimal on-site work.

[0065] See also Figure 4-6 , further, the specific structure of the upper corner piece 11 is:

[0066] The upper corner fitting 11 includes at least a first sleeve 111, which has a hollow interior and an opening at its bottom for communication with the lower corner fitting 12. The upper corner fitting 11 also includes a second sleeve 112 or horizontal frame 113, located on one side and above the first sleeve 111. The second sleeve 112 has a hollow interior and an opening at its bottom for communication with the lower corner fitting 12. The horizontal frame 113 has a hollow structure that extends from top to bottom.

[0067] Therefore, when connecting non-top modules, the lower corner fitting 12 of the lower module can be located at the bottom of the first sleeve 111 and the second sleeve 112 of the upper staggered module and the three are connected at the cavity structure. The inner plug-in 13 is located inside the connected upper corner fitting 11 and lower corner fitting 12, and slurry J is poured into the cavity structure to connect the first sleeve 111 and the lower corner fitting 12, thereby realizing the connection between the two staggered stacked modules.

[0068] When connecting the top module, the lower corner fitting 12 of the lower module can be located at the bottom of the first sleeve 111 and the horizontal frame 113 of the top staggered module, and the cavity structures of the three are connected. The inner plug-in 13 is inserted into the interior of the connected upper corner fitting 11 and the lower corner fitting 12, and then the slurry J is poured in the cavity structure to connect the upper corner fitting 11 and the lower corner fitting 12, thereby realizing the connection between the two staggered stacked modules.

[0069] See also Figure 4-6 , further, the specific structure of the lower corner piece 12 is:

[0070] The lower corner piece 12 includes a third sleeve 121 and a fourth sleeve 122. The fourth sleeve 122 is located on the upper side of the third sleeve 121. The interior of the third sleeve 121 and the fourth sleeve 122 has a cavity structure, and the top of the third sleeve 121 and the fourth sleeve 122 has an opening to communicate with the upper corner piece 11.

[0071] See also Figure 4-10 Thus, when connecting non-top modules, the third sleeve 121 of the lower module can be located at the bottom of the first sleeve 111 of the upper staggered module and the two are connected at the cavity structure, the fourth sleeve 122 can be located at the bottom of the second sleeve 112 and the two are connected at the cavity structure, the insert 13 is located inside the connected third sleeve 121 and first sleeve 111, as well as inside the fourth sleeve 122 and second sleeve 112, and then slurry J is poured in the cavity structure to connect the third sleeve 121 and the first sleeve 111, and the fourth sleeve 122 and the second sleeve 112, that is, to connect the upper corner piece 11 and the lower corner piece 12, thereby realizing the connection between the two staggered stacked modules.

[0072] See also Figure 11-12 When connecting the top module, the third sleeve 121 of the lower module can be located at the bottom of the first sleeve 111 of the top staggered module and the cavity structures of the two are connected, the fourth sleeve 122 is located at the bottom of the horizontal frame 113 and the cavity structures of the two are connected, and the insert 13 is located inside the connected third sleeve 121 and first sleeve 111, as well as inside the fourth sleeve 122 and horizontal frame 113, and then slurry J is poured in the cavity structure to connect the third sleeve 121 and the first sleeve 111, and the fourth sleeve 122 and the horizontal frame 113, that is, to connect the upper corner piece 11 and the lower corner piece 12, thereby realizing the connection between the two staggered stacked modules.

[0073] It should be noted that the upper corner piece 11 and the lower corner piece 12 are connected by two internal plug-ins. Both internal plug-ins can move horizontally to adapt to the upper and lower corner pieces with horizontal offset, further expanding the installation tolerance between the upper and lower staggered modules, and effectively reducing the vertical and horizontal connection accuracy requirements between the staggered stacked modules and the processing accuracy requirements of the modules.

[0074] Furthermore, the specific structure of the inserter 13 is as follows:

[0075] The interposer 13 includes a first interposer 131 and a second interposer.

[0076] See also Figure 4-6 The first inner plug 131 includes a first horizontal plate 1311, an upper vertical profile 1312 fixed to the top of the first horizontal plate 1311, and a lower vertical profile 1313 fixed to the bottom of the first horizontal plate 1311. Figure 11 The second inner plug-in comprises a second horizontal plate 1321 and a vertical profile 1322 fixed to the bottom of the second horizontal plate 1321.

[0077] When connecting a non-top module, the third sleeve 121 is located at the bottom of the first sleeve 111, the upper vertical profile 1312 of the first insert 131 is located within the first sleeve 111, and the lower vertical profile 1313 is located within the third sleeve 121. A first horizontal plate 1311 is interposed between the first and third sleeves 111, so that the first insert 131 is located within the connected third sleeve 121 and first sleeve 111. Simultaneously, the fourth sleeve 122 is located at the bottom of the second sleeve 112, the upper vertical profile 1312 of the first insert 131 is located within the second sleeve 112, and the lower vertical profile 1313 is located within the second sleeve 112. The first horizontal plate 1311 is interposed between the second and fourth sleeves 112, so that the first insert 131 is located within the connected fourth and second sleeves 122, 112.

[0078] When the top module is connected, the third sleeve 121 is located at the bottom of the first sleeve 111, the upper vertical profile 1312 of the first insert 131 is located within the first sleeve 111, and the lower vertical profile 1313 is located within the third sleeve 121. The first horizontal plate 1311 is sandwiched between the first and third sleeves 111, so that the first insert 131 is located within the connected third sleeve 121 and first sleeve 111. Simultaneously, the fourth sleeve 122 is located at the bottom of the horizontal frame 113, the vertical profile 1322 of the second insert is located within the fourth sleeve 122 and the horizontal frame 113, and the second horizontal plate 1321 is mounted on top of the horizontal frame 113, so that the second insert is located within the connected fourth sleeve 122 and the horizontal frame 113.

[0079] Specifically, the second sleeve 112 or the horizontal frame 113 is fixed to an upper portion of one side of the first sleeve 111 by casting or welding, and the fourth sleeve 122 is fixed to an upper portion of one side of the third sleeve 121 by casting or welding.

[0080] See also Figure 4 、 5 Furthermore, in order to realize pouring grout J in the cavity structure connected by the upper corner piece 11 and the lower corner piece 12, the connection node 1 further includes the following configurations:

[0081] The first horizontal plate 1311 is provided with a first circulation hole 13111 . The tops of the first sleeve 111 , the second sleeve 112 , and the fourth sleeve 122 are all provided with a grouting material circulation hole L. The second horizontal plate 1321 is provided with a second circulation hole 13211 .

[0082] When the first insert 131 is located inside the connected first sleeve 111 and the third sleeve 121, the cavity structure of the first sleeve 111, the first flow hole 13111 and the cavity of the third sleeve 121 are sequentially connected to form a grouting channel for pouring grout J; or,

[0083] When the first inner plug 131 is located inside the connected second sleeve 112 and fourth sleeve 122 , the cavity structure of the second sleeve 112 , the first flow hole 13111 and the cavity structure of the fourth sleeve 122 are sequentially connected to form a grouting channel.

[0084] When the second inner plug-in unit is located inside the communicating horizontal frame 113 and the third sleeve 121 , the second flow hole 13211 and the cavity structure of the third sleeve 121 are communicated to form a grouting channel.

[0085] See also Figure 4 and 5 Furthermore, in order to further improve the connection strength between the upper corner piece 11 and the lower corner piece 12 and avoid separation between the upper and lower parts, the connection node 1 also includes the following settings:

[0086] The inner walls of the first sleeve 111 and the second sleeve 112 are provided with multiple rows and columns of first barb bolts H1 that are bent upward, the inner walls of the third sleeve 121 and the fourth sleeve 122 are provided with multiple rows and columns of first barb bolts H1 that are bent downward, the outer periphery of the upper vertical profile 1312 is provided with multiple rows and columns of second barb bolts H2 that are bent downward, and the outer periphery of the lower vertical profile 1313 and the vertical profile 1322 is provided with multiple rows and columns of second barb bolts H2 that are bent upward.

[0087] The function of the studs is to ensure effective engagement between the insert and the sleeve after grouting. Since the upper corner piece 11 and the lower corner piece 12 are connected vertically, bending the studs in the effective working direction—that is, setting the bending direction of the first barbed stud H1 on the sleeve opposite to the sleeve opening and the bending direction of the second barbed stud H2 on the insert in the same direction as the sleeve opening—can prevent the insert 13 from being vertically removed from the sleeve, achieving effective engagement between the insert 13 and the sleeve and reducing the volume occupied by the studs.

[0088] It should be noted that when the inner plug 13 is inserted into the corresponding sleeve, the second barb studs H2 on the inner plug and the first barb studs H1 on the sleeve are arranged in a staggered manner to achieve plug-in assembly.

[0089] See also Figure 4 Preferably, in order to improve the connection strength of the sleeve, the connection node also includes the following settings:

[0090] A reinforcing plate 14 is provided in the middle of the length direction of the first sleeve 111, the second sleeve 112, the third sleeve 121 and the fourth sleeve 122. A notch Q is provided in the upper vertical profile 1312, the lower vertical profile 1313 and the vertical profile 1322 for inserting the reinforcing plate 14.

[0091] When the inner plug is inserted into the sleeve and grouting is carried out, the force transmitted to the grouting material causes the sleeve to bulge outwards and bend outwards, resulting in a decrease in the sleeve's bearing capacity. The reinforcement plate 14 provided in the sleeve can significantly suppress this bulging phenomenon and improve the sleeve's bearing capacity.

[0092] Preferably, the upper vertical profile 1312 and the lower vertical profile 1313 of the first inner plug 131 are vertically overlapped, that is, the first inner plug 13 of the standard part is formed (see Figure 5 Alternatively, the upper vertical profile 1312 and the lower vertical profile 1313 are horizontally offset, ie, forming a non-standard first inner plug 13 (see Figure 6 ).

[0093] When the horizontal deviation between the modules arranged in an alternating manner up and down is small, the upper and lower modules can be connected by the first internal plug-in 131 of the standard part. When the horizontal deviation between the modules arranged in an alternating manner up and down is large, the upper and lower modules can be connected by the first internal plug-in 131 of the non-standard part, so as to solve the problem of unsuccessful installation due to large module production errors and reduce the later adjustment costs caused by the inability to accurately position and install the modules on site.

[0094] See also Figure 4-12 Furthermore, the cross-sections of the upper vertical profile 1312, the lower vertical profile 1313 and the vertical profile 1322 are all C-shaped.

[0095] See also Figure 8 When two staggered modules located on the non-top floor are connected via connection node 1, the two first interposers 131 are located inside the connected first sleeve 111 and third sleeve 121, and inside the second sleeve 112 and fourth sleeve 122, respectively. The openings of the two first interposers 131 face each other, and their cross-sections are square, so that they substantially overlap with the columns of the modules connected by connection node 1 in the vertical direction. The gravity of the columns can be directly transmitted downward to the two first interposers 131 and borne by the two first interposers 131, thereby improving the force-bearing efficiency of the two first interposers 131 and reducing the amount of steel used in the two first interposers 131.

[0096] When two staggered modules on the top layer are connected via the connection node 1, the first interposer 131 and the second interposer are located inside the connected first sleeve 111 and third sleeve 121, and inside the horizontal frame 113 and fourth sleeve 122, respectively. The openings of the first interposer 131 and the second interposer 132 face each other, and their cross-sections are square, so as to basically coincide with the columns of the module connected to the connection node 1 in the vertical direction. The gravity of the columns can be directly transferred downward to the first interposer 131 and the second interposer 1 and borne by the first interposer 131 and the second interposer 132, thereby improving the force-bearing efficiency of the first interposer 131 and the second interposer and reducing the amount of steel used in the first interposer 131 and the second interposer.

[0097] Example 2

[0098] Referring to 1-3, this embodiment further provides a staggered stacking module 200 based on the first embodiment. The staggered stacking module 200 includes a connection node 1 and a module, and the module includes a steel structure module 1.

[0099] The steel structure module 1 is a rectangular parallelepiped frame structure. Upper corner pieces 11 are provided at the four bottom corners of the steel structure module 1 , and lower corner pieces 12 are provided at the four top corners of the steel structure module 1 .

[0100] When multiple steel structure modules 1 are arranged in a staggered stack, the bottom corners of the upper steel structure modules 1 can be connected to the top corners of the lower staggered steel structure modules 1 through the connection nodes 1 to form a multi-layer and multi-span staggered stacking module 200.

[0101] Specifically, the upper corner piece 11 on the steel structure module 1 includes a first sleeve 111 and a second sleeve 112. The staggered stacking module 200 is located on the non-top floor of the staggered stacked modular building 100.

[0102] Optionally, the upper corner pieces 11 are cast or welded to the four bottom corners of the steel structure module 1 , and the lower corner pieces 12 are cast or welded to the four top corners of the steel structure module 1 .

[0103] Specifically, a grouting hole K1 and a grouting hole K2 are opened on the lower side wall of the hollow column of the steel structure module 1 .

[0104] When the third sleeve 121 of the lower steel structure module 1 is located at the bottom of the first sleeve 111 of the upper staggered steel structure module 1 and the cavity structures of the two are connected, the fourth sleeve 122 is located at the bottom of the second sleeve 112 and the cavity structures of the two are connected, and the first insert 131 is located inside the connected third sleeve 121 and first sleeve 111, as well as inside the fourth sleeve 122 and second sleeve 112, slurry J can be poured into the grouting hole K1 on the column of the upper staggered steel structure module 1, so that the slurry J flows through the grouting material circulation hole L on the first sleeve 111, the cavity structure of the first sleeve 111, the first circulation hole 13111 and the cavity structure of the third sleeve 121 in sequence to connect the first sleeve 111 and the third sleeve 121. At the same time, the poured slurry J can flow through the cavity structure of the second sleeve 112, the first flow hole 13111 and the cavity structure of the fourth sleeve 122 in sequence to connect the second sleeve 112 and the fourth sleeve 122. Excess slurry J can overflow from the overflow hole K2.

[0105] Example 3

[0106] See also Figure 1 、 3 9-12, based on the first and second embodiments, this embodiment further provides a staggered modular building 100, which includes staggered modules 200. The modules also include a bottom frame 22, a wall frame 23, a top frame 24, and support beams 25.

[0107] The bottom frame 22 and top frame 24 are oriented horizontally, while the wall frame 23 is oriented vertically. Each of the four corners of the bottom frame 22 is provided with lower corner fittings 12. Each of the four corners of the top frame 24 is provided with upper corner fittings 11. The wall frame 23 has upper corner fittings 11 at the bottom corners and lower corner fittings 12 at the top corners. The support beam 25 is oriented horizontally, with lower corner fittings 12 at both corners.

[0108] The bottom notch 201 of the staggered stacked module 200 can be connected to the bottom frame 22 through the connection node 1, the side notch 202 can be connected to the wall frame 23 through the connection node 1, and the top notch 203 can be connected to the top frame 24 through the connection node 1. The outer bottom corners of the steel structure module 1 located at the edge of the bottom layer can be connected to the two corners of the support beam 25 through the connection node 1 to form a multi-layer, multi-span modular building 100 in the shape of a rectangular parallelepiped, and the bottom support is provided by the support beam 25 and the bottom frame 22.

[0109] It should be noted that the staggered stacked modular building 100 forms a steel frame structure as a whole, and various building components and decorations are arranged in the steel frame structure to form a steel structure building with architectural functions.

[0110] Optionally, the upper corner piece 11 and the lower corner piece 12 are fixed to the corresponding modules by casting or welding.

[0111] Specifically, support steel columns 26 are also provided at the four corners of the support beam 6 and the two corners of the bottom frame 22. The support steel columns 26 are fixed to the bottom of the first sleeve 111 of the support beam 6 and the side wall of the second sleeve 112, and the bottom of the support steel column 26 is flush with the bottom of the second sleeve 112 to support the upper corner piece 11.

[0112] Specifically, the upper corner fittings 11 on the top frame 24 include a first sleeve 111 and a horizontal frame 113. The top frame 24 is located at the top floor of the staggered modular building 100. The upper corner fittings 11 on the bottom frame 22, wall frames 23, top frame 24, and support beams 25 include a first sleeve 111 and a second sleeve 112. The steel structural modules 1, bottom frame 22, wall frames 23, top frame 24, and support beams 25 are located at the middle and bottom floors of the modular building.

[0113] It should be noted that the connection methods between modules at different positions in the staggered modular building 100 are different:

[0114] The outer bottom corners of the steel structure modules 1 at the bottom edge of the staggered stacked modular building 100 can be connected to the two corners of the support beam 25 through the connection node 1, and the bottom corners of the adjacent steel structure modules 1 on the bottom can be connected to the four corners of the bottom frame 22 located between them through the connection node 1; or, the bottom corner of the bottom steel structure module 1 and the bottom corner of the adjacent bottom steel structure module 1 can be connected to the four corners of the bottom frame 22 located between them through the connection node 1.

[0115] The outer top corner of the steel structure module 1 at the lower edge can be connected to the bottom corner of the upper wall frame 23 through the connection node 1, and the top corner of the lower wall frame 23 can be connected to the outer bottom corner of the steel structure module 1 at the upper edge through the connection node 1.

[0116] The top corners of the adjacent steel structure modules 1 on the top floor can be connected to the four corners of the top frame 24 located between the two through the connection node 1; or, the top corner of the top steel structure module 1 and the top corner of the adjacent top wall frame 23 can be connected to the four corners of the top frame 24 located between the two through the connection node 1.

[0117] Specifically, a grouting hole K1 and a grouting hole K2 are provided on the lower side wall of the hollow column of the wall frame 23 .

[0118] When the upper corner fitting 11 on the upper wall frame 23 and the lower corner fitting on the lower steel structure module 1 or the bottom frame 22 are connected vertically and accommodate the first inner plug 131, grouting can be performed into the grouting hole K1 on the column of the wall frame 23, so that the grout flows sequentially through the grouting material flow hole L on the first sleeve 111, the inner cavity of the first sleeve 111, the first flow hole 13111, and the inner cavity of the third sleeve 121, thereby connecting the first sleeve 111 and the third sleeve 121. Simultaneously, the grout can also flow sequentially through the grouting material flow hole L on the second sleeve 112, the inner cavity of the second sleeve 112, the first flow hole 13111, and the inner cavity of the fourth sleeve, thereby connecting the second sleeve 112 and the fourth sleeve. Excess grout can overflow from the overflow hole K2.

[0119] Furthermore, when the modular building is formed with an even number of spans, the assembly method of the modular building is as follows:

[0120] First, support beams 25 and bottom frames 22 are arranged at intervals horizontally on the bottom floor. After the lower corner fittings 12 of the support beams 25 and bottom frame 22 are inserted into the lower vertical profile 1313 of the first inner plug 131, the steel structure module 1 and the wall frame 23 are hoisted above the support beams 25 and bottom frame 22 so that the upper corner fittings 11 of the steel structure module 1 and wall frame 23 are inserted into the upper vertical profile 1312 of the first inner plug 131. Grouting is then performed into the grouting holes K1 on the columns of the steel structure module 1 and the wall frame 23 so that grouting is injected into the lower corner fittings 12 and the upper corner fittings 11 to connect the lower corner fittings 12 and the upper corner fittings 11, thereby connecting the steel structure module 1, the wall frame 23, the support beams 25 and the bottom frame 22 as a whole.

[0121] Subsequently, after the lower vertical profile 1313 of the first inner plug 131 is inserted into the top corner of the steel structure module 1 and the wall frame 23, the steel structure module 1 and the wall frame 23 of the upper layer are hoisted thereon, so that the upper corner pieces 11 of the steel structure module 1 and the wall frame 23 of the upper layer are inserted into the upper vertical profile 1312 of the first inner plug 131, and grouting is performed into the grouting holes K1 on the columns of the steel structure module 1 and the wall frame 23 of the upper layer, so that the lower corner pieces 12 and the upper corner pieces 11 are grouting-into and connected, thereby connecting the steel structure modules 1 and the wall frames 23 of the two layers into one.

[0122] During the top-level installation, the third sleeve 121 of the steel structure module 1 and the wall frame 23 is first inserted into the lower vertical profile 1313 of the first inner plug 131, and then the top frame 24 is hoisted thereon, and the first sleeve 111 of the top frame 24 is inserted into the upper vertical profile 1312 of the first inner plug 131. After the second inner plug 132 is inserted from top to bottom into the horizontal frame 114 of the top frame 24 and the fourth sleeve 122 of the steel structure module 1 and the wall frame 23, grouting material is poured into the grouting material flow hole L on the first sleeve 111 and the second flow hole 13211 on the second horizontal plate 1321 of the second inner plug 132, so that grouting is injected into the lower corner fitting 12 and the upper corner fitting 11 to connect the lower corner fitting 12 and the upper corner fitting 11, thereby connecting the top frame 24 of the top floor and the steel structure module 1 and the wall frame 23 below.

[0123] See also Figure 3-12 , the arrow is the assembly direction. Further, when the modular building is an odd number of spans, the assembly method of the modular building is:

[0124] First, install the support beam 25 and the bottom frame 22 on the bottom layer. After the lower corner pieces 12 of the support beam 25 and the bottom frame 22 are inserted into the lower vertical profile 1313 of the first inner plug 131, hoist the steel structure module 1 above the support beam 25 and the bottom frame 22 so that the upper corner pieces 11 of the steel structure module 1 are inserted into the upper vertical profile 1312 of the first inner plug 131, and grouting is performed into the grouting holes K1 on the columns of the steel structure module 1 so that grouting is injected into the lower corner pieces 12 and the upper corner pieces 11 to connect the lower corner pieces 12 and the upper corner pieces 11, thereby connecting the steel structure module 1, the support beam 25 and the bottom frame 22 as a whole.

[0125] Subsequently, after the lower vertical profile 1313 of the first inner plug 131 is inserted into the top corner of the steel structure module 1, the steel structure module 1 and wall frame 23 of the upper layer are hoisted thereon, so that the upper corner pieces 11 of the steel structure module 1 and wall frame 23 of the upper layer are inserted into the upper vertical profile 1312 of the first inner plug 131, and grouting is performed into the grouting holes K1 on the columns of the steel structure module 1 and wall frame 23 of the upper layer, so that grouting is injected into the lower corner pieces 12 and the upper corner pieces 11 to connect the lower corner pieces 12 and the upper corner pieces 11, thereby connecting the steel structure modules 1 and wall frames 23 of the two layers into one.

[0126] When installing on the top floor, when the resulting modular building has an even number of floors:

[0127] After inserting the lower vertical profile 1313 of the first insert 131 into the third sleeve 121 of the steel structure module 1 and the wall frame 23, the top frame 24 is hoisted atop it, and the first sleeve 111 of the top frame 24 is inserted into the upper vertical profile 1312 of the first insert 131. Subsequently, the second insert 132 is sequentially inserted from top to bottom into the horizontal frame 114 of the top frame 24 and the fourth sleeve 122 of the steel structure module 1 and the wall frame 23. Grouting material is then poured into the second horizontal plates 1321 of the first sleeve 111 and the second insert 132, connecting the lower corner fittings 12 and the upper corner fittings 11. This connects the top frame 24 on the top floor to the wall frame 23 below, forming a single unit.

[0128] When installing on the top floor, when the resulting modular building has an odd number of floors:

[0129] After inserting the lower vertical profile 1313 of the first insert 131 into the third sleeve 121 of the steel structure module 1, the top frame 24 is hoisted thereon, and the first sleeve 111 of the top frame 24 is inserted into the upper vertical profile 1312 of the first insert 131. Subsequently, the vertical profile 1322 of the second insert 132 is sequentially inserted from top to bottom into the horizontal frame 114 of the top frame 24 and the fourth sleeve 122 of the steel structure module 1. Grouting material is then poured into the second horizontal plates 1321 of the first sleeve 111 and the second insert 132, thereby injecting grout into the lower corner fittings 12 and the upper corner fittings 11, connecting them together and thus integrating the top frame 24 at the top level with the steel structure module 1 below.

[0130] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0131] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connections, removable connections, or integration. They may refer to mechanical connections or electrical connections. They may refer to direct connections or indirect connections through an intermediary. They may refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0132] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0133] In the description of this specification, the terms "one embodiment", "some embodiments", "embodiments", "examples", "specific examples" or "some examples" refer to the specific features, structures, materials or characteristics described in conjunction with the embodiment or example and included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and features of different embodiments or examples, unless they are mutually inconsistent.

[0134] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may alter, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A connection node for staggered stacked modular buildings, characterized in that: include: An upper corner piece (11) having a cavity structure inside; A lower corner piece (12) having a cavity structure therein, the lower corner piece (12) being located at the bottom of the upper corner piece (11) and being in communication at least at the cavity structure; and an inner plug-in component (13) located inside the communicating upper corner piece (11) and the lower corner piece (12) and oriented vertically; The cavity structure is used to accommodate slurry (J) after the inner plug (13) is inserted.

2. The connection node of the staggered stacked modular building according to claim 1, characterized in that: The upper corner piece (11) comprises at least a first sleeve (111), the first sleeve (111) has the cavity structure inside, and the bottom of the first sleeve (111) has an opening for communicating with the lower corner piece (12); The upper corner piece (11) further includes a second sleeve (112) or a horizontal frame (113), wherein the second sleeve (112) or the horizontal frame (113) is located at an upper portion of one side of the first sleeve (111); the second sleeve (112) has the cavity structure, and the bottom of the second sleeve (112) has an opening for communicating with the lower corner piece (12).

3. The connection node of the staggered stacked modular building according to claim 2, characterized in that: The lower corner piece (12) comprises: A third sleeve (121), wherein the third sleeve (121) has the cavity structure inside, and the top of the third sleeve (121) has an opening for communicating with the upper corner piece (11); A fourth sleeve (122), the fourth sleeve (122) is located on the upper side of the third sleeve (121), the fourth sleeve (122) has the cavity structure inside, and the top of the first sleeve (111) has an opening to communicate with the upper corner piece (11).

4. The connection node of the staggered stacked modular building according to claim 2, wherein: The inner plug-in (13) comprises: A first inner plug (131), the first inner plug (131) comprising a first horizontal plate (1311), an upper vertical profile (1312) fixed to the top of the horizontal plate (1311), and a lower vertical profile (1313) fixed to the bottom of the horizontal plate (1311); A second inner plug (132), the second inner plug (132) comprising a second horizontal plate (1321) and a vertical profile (1322) fixed to the bottom of the second horizontal plate (1321); The third sleeve (121) is located at the bottom of the first sleeve (111), the upper vertical profile (1312) of the first inner plug-in unit (131) is located in the first sleeve (111), the lower vertical profile (1313) is located in the third sleeve (121), and the first horizontal plate (1311) is sandwiched between the first sleeve (111) and the third sleeve (121); The fourth sleeve (122) is located at the bottom of the second sleeve (112), the upper vertical profile (1312) of the first insert (131) is located in the second sleeve (112), the lower vertical profile (1313) is located in the second sleeve (112), and the first horizontal plate (1311) is sandwiched between the second sleeve (112) and the fourth sleeve (122); or, The fourth sleeve (122) is located at the bottom of the horizontal frame (113), the vertical profile (1322) of the second insert is located within the fourth sleeve (122) and the horizontal frame (113), and the second horizontal plate (1321) is mounted on the top of the horizontal frame (113).

5. The connection node of the staggered stacked modular building according to claim 4, characterized in that: The inner walls of the first sleeve (111) and the second sleeve (112) are provided with multiple rows and columns of first barb bolts (H1) that are bent upwards, the inner walls of the third sleeve (121) and the fourth sleeve (122) are provided with multiple rows and columns of first barb bolts (H1) that are bent downwards, the outer periphery of the upper vertical profile (1312) is provided with multiple rows and columns of second barb bolts (H2) that are bent downwards, and the outer periphery of the lower vertical profile (1313) and the vertical profile (1322) is provided with multiple rows and columns of second barb bolts (H2) that are bent upwards.

6. The connection node of the staggered stacked modular building according to claim 4, characterized in that: A first circulation hole (13111) is provided on the first horizontal plate (1311); grouting material circulation holes (L) are provided on the tops of the first sleeve (111), the second sleeve (112) and the fourth sleeve (122); The second horizontal plate (1321) is provided with a second circulation hole (13211); When the first inner plug (131) is located inside the first sleeve (111) and the third sleeve (121) that are connected, the cavity structure of the first sleeve (111), the first flow hole (13111) and the cavity of the third sleeve (121) are connected in sequence to form a grouting channel; or, When the first inner plug (131) is located inside the second sleeve (112) and the fourth sleeve (122) that are connected, the cavity structure of the second sleeve (112), the first flow hole (13111) and the cavity structure of the fourth sleeve (122) are connected in sequence to form a grouting channel; When the second inner plug-in unit is located inside the connected horizontal frame (113) and the third sleeve (121), the second flow hole (13211) and the cavity structure of the third sleeve (121) are connected to form a grouting channel.

7. The connection node of the staggered stacked modular building according to claim 4, characterized in that: A reinforcing plate (14) is provided in the middle of the length direction of the first sleeve (111), the second sleeve (112), the third sleeve (121) and the fourth sleeve (122); a notch (Q) capable of being inserted into the reinforcing plate (14) is provided in the upper vertical profile (1312), the lower vertical profile (1313) and the vertical profile (1322); The upper vertical profile (1312) and the lower vertical profile (1313) of the first inner plug-in unit (131) are vertically overlapped or horizontally offset.

8. The connection node of the staggered stacked modular building according to claim 4, characterized in that: The cross sections of the upper vertical profile (1312), the lower vertical profile (1313) and the vertical profile (1322) are all C-shaped; When the two first inner plug-ins (131) are respectively located inside the first sleeve (111) and the third sleeve (121) that are connected, and inside the second sleeve (112) and the fourth sleeve (122), the openings of the two first inner plug-ins (131) are opposite to each other; When the first inner plug-in unit (131) and the second inner plug-in unit are respectively located inside the first sleeve (111) and the third sleeve (121) that are connected, and inside the horizontal frame (113) and the fourth sleeve (122), the openings of the first inner plug-in unit (131) and the second inner plug-in unit are opposite to each other.

9. A staggered stacking module comprising a connection node of a staggered stacking modular building according to any one of claims 1 to 8, characterized in that: Also included are the modules, which at least include a steel structure module (21); The steel structure module (21) is a rectangular parallelepiped frame structure, the four bottom corners of the steel structure module (21) are all provided with the upper corner pieces (11), and the four top corners of the steel structure module (21) are all provided with the lower corner pieces (12); When a plurality of the steel structure modules (21) are arranged in a staggered stack, the bottom corners of the upper steel structure modules (21) can be connected to the top corners of the lower staggered steel structure modules (21) through the connection nodes (1) to form a multi-layer and multi-span staggered stacked module (200).

10. A staggered stacked modular building, comprising the staggered stacked modules (200) according to claim 9, characterized in that: The module further comprises a bottom frame (22), a wall frame (23), a top frame (24) and a support beam (25); The bottom frame (22) and the top frame (24) are oriented horizontally, and the wall frame (23) is oriented vertically; the four corners of the bottom frame (22) are provided with the lower corner fittings (12); the four corners of the top frame (24) are provided with the upper corner fittings (11); the bottom corner of the wall frame (23) is provided with the upper corner fittings (11), and the top corner is provided with the lower corner fittings (12); the support beam (25) is oriented horizontally, and the two corners are provided with the lower corner fittings (12); The bottom notch (201) of the staggered stacking module (200) can be connected to the bottom frame (22) through the connection node, the side notch (202) can be connected to the wall frame (23) through the connection node, the top notch (203) can be connected to the top frame (24) through the connection node, and the outer bottom corners of the steel structure module (21) located at the edge of the bottom layer can be connected to the two corners of the support beam (25) through the connection node, so as to form a multi-layer, multi-span, rectangular parallelepiped modular building (100).

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